Not necessarily locked to 7.1 as I've been having this problem since 7.0.6 for some members.
Basically, a member uploads a photo successfully (any method), and never sees the expansion of the upload details, ie set title, description, category etc. The object also never appears on the spy/timeline/outline, but shows up as a valid album object and you can view/edit after the fact.
If I take another test member account and do the same thing, it works just fine. The photo details expand after upload, allows them to be saved, and the item shows up in the timeline/spy.
I have compared the member accounts in the database, the only difference is one member has some custom categories defined (the one that doesn't work). That same member also has deanos FBC defined with a facebook profile, but I wouldn't suspect this as culprit.
Any ideas?